netdev - Re: Using HTB over MultiQ

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Message-ID: <1383834021.9412.61.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Thu, 07 Nov 2013 06:20:21 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Anton 'EvilMan' Danilov <littlesmilingcloud@...il.com>
Cc:	netdev@...r.kernel.org
Subject: Re: Using HTB over MultiQ

On Thu, 2013-11-07 at 06:11 -0800, Eric Dumazet wrote:
> On Thu, 2013-11-07 at 17:12 +0400, Anton 'EvilMan' Danilov wrote:
> > Hello.
> > 
> > I'm experimenting with high performance linux router with 10G NICs.
> > On high traffic rates the performance are limited by the lock of root
> > queue discipline. For avoid impact of locking i've decided to build
> > QoS scheme over the multiq qdisc.
> > 

Oh well, this is a router.

So I think you need to change the device queue selection so that it only
depends on your filters / htb classes.

Otherwise flows for a particular 'customer' might be spread on the 8
queues, so the rate could be 8 * 1Mbit, instead of 1Mbit.



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